BIOLOGICAL CONTROL OF CUCUMBER GREEN MOTTLE MOSAIC VIRUS

摘要

The present invention relates to attenuated strains of cucumber green mottle mosaic virus (CGMMV) useful in protecting cucumber plants from infection with the wild-type infectious CGMMV strain. The genome of the attenuated virus contains at least one mutation or group of mutations selected from c.4969GA, c.3334CT, and a group of at least six of the mutations c.315GA; c,1498AG; c,1660CT; c.3430CT; c.3528AG; c.4144CT; c.4248CT; and c.6228CT. These mutated genomes encode one or more mutations selected from the group consisting of A1092V and/or R1637H in the 186 kDa readthrough replication protein, A1092V in the 129 kDa replication protein, and at least six mutations selected from G86S, E480G, S534F, A1124V, N1157D, P1362L, P1397S in the 129 kDa replication protein and/or the 186 kDa readthrough replication protein, and the A156V mutation in the coat protein.